PSLE At first, Abi had 70 stamps and some erasers. After she gave away 44 stamps and 40% of the erasers, she had a total of 38 stamps and erasers. How many erasers did Abi have at first?
|
Stamps |
Erasers |
Total |
Before |
70 |
5 u |
|
Change |
- 44 |
- 2 u |
|
After |
26 |
3 u |
38 |
40% =
40100 =
25 Number of stamps that Abi left
= 70 - 44
= 26
Number of erasers that Abi left
= 38 - 26
= 12
3 u = 12
1 u = 12 ÷ 3 = 4
Number of erasers that Abi had at first
= 5 u
= 5 x 4
= 20
Answer(s): 20